Table 1

Baseline demographic characteristics of patients.

VariablesPosterolateral
Approach (n = 31)		Posterior Parasagital
Approach (n = 40)		 P Value
Age, y47.35 ± 10.1147.50 ± 7.530.947
Gender, Female19 (61)22 (55)0.595
Weight, kg66.35 ± 10.7168.83 ± 12.430.381
Height, cm161.52 ± 9.88162.95 ± 9.910.547
Body mass index, kg/m2 25.39 ± 3.1225.78 ± 3.020.595
Duration of pain, mo16.55 ± 5.4815.38 ± 5.410.370

  • Note: Qualitative data were expressed as number (%), and qualitative variables were expressed as the mean ± standard deviation.